Download Installation Manual TWM Performance Short Shifter Nissan 350Z

Installation Manual
TWM Performance Short Shifter
Nissan 350Z, 370Z
Infiniti G35, G37
It is preferable to park on a flat surface, as you will have to engage and
disengage the hand brake and shift from gears to neutral. If you cannot do so
and are obliged to install the shifter on a slightly inclined surface, place wooden
blocks in front or behind the wheels to prevent the car from moving while you’re
working.
Estimated Installation Time: 75 minutes
Tools required:
 Ratchet
 10 mm socket
 12 mm socket
 Ratchet extension
 Phillips head screwdriver
 Small flat head screwdriver (G37 only)
 Needle nose pliers/visegrips
 Jack and jackstands
 Bench vise (suggested)
 White lithium grease
1. Remove the stock shift knob by
rotating it counter clockwise. Put it aside
for re-installation later. This step may
require the use of a strap wrench
because the shift knob is glued in place
from the factory. Make sure you cover
the stock knob with a piece of leather or
a towel before using this tool, as it could
be damaged during this step.
2. Remove the locking ring from the
shifter threads.
3. Lift the center console from the
bottom of the shift boot. It’s only clipped
on so it will come out easily.
4. Flip the console and unclip the wiring
harness from it. You can now remove
the center console from the car. Put it
aside in a safe place for re-installation
later.
5. For the 350Z/G35, skip steps #6 to
#11 and proceed to step #12.
The following steps will only be required
for the 370Z/G37 to have proper access
to the shifter surrounding. To do so, the
complete center compartment will need
to be moved further back in the car in
the 370Z and completely removed in the
G37.
In the 370Z, pull on each side of the
console as pictured. The sides will pop
out of the center unit with light force.
6. Use a Philips head screwdriver to
remove both screws highlighted to the
left. The screws are located at the front
of the console. Repeat for both sides of
the console.
Put the screws aside in a safe place for
re-installation later.
7. In the 370Z, working behind the
seats, use a Philips head screwdriver to
remove both screws holding the center
compartment on each side of the
console.
In the G37, remove the ashtray behind
the center console and remove the
small plastic panel surrounding the
ashtray by pulling on it. Remove the two
screws holding the ashtray light bulb or
simply disconnect its harness.
Working with the arm rest up, remove
the small plastic cover where the arm
rest hinge is using a flat head screw
driver. This will uncover 4 screws,
remove the two outside ones.
Put the screws aside for re-installation
later.
8. Using a set of needle nose pliers,
squeeze out the tabs holding the wire
harnesses to the console on both sides
of the shifter. Pictured to the left is the
driver side.
In the G37, you will have to disconnect
2 wires like this in front of the shifter and
one right behind the shifter. This is
easier done with the center console
shifted back a little bit so that you can
undo the harness from under the
console, sliding your hand in between
the carpet and the center console.
9. From the passenger side, you will
need to squeeze out both white tabs
holding the harness to the shifter
surrounding so the center console can be
moved back a few inches.
10. In the G37, you will have to remove
the whole center console. To to this,
unclip the hand brake soft plastic trim.
This will make things a lot easier.
11. In the G37, pull back on the console,
lift the rear up until it clears the hand
brake handle and take the console out of
the car. Put it in a safe place.
12. If your car is equipped with a white
sound dampening insolation, remove it
from the car and put it aside for reinstallation later.
13. Now that the console has been
moved back/removed, remove the two
(2) bottom bolts from the shifter
surrounding plate (only for 370Z).
14. In the 350Z, G35 and G37, remove
the four (4) bolts holding the metal
shifter surrounding.
Put the bolts aside for re-installation
later.
15. Remove the metal shifter
surrounding from the car and put it
aside for re-installation later. Also
remove the top rubber boot along with
the metal shifter surrounding.
16. Remove the second rubber boot
from the shifter and put it aside for reinstallation later.
17. Using a 10 mm socket with a ratchet
and an extension, remove the two (2)
bolts from the reverse lockout plate as
pictured. The bolts will not be re-used,
however they should be kept in case
you revert back to stock.
Place the shifter in 5th gear, this will
make it easier for you to remove the bolt
connecting the shift rod with the shifter.
18. For this step, you will need to lift the
front of the car. Please refer to your car
owner’s manual for the procedure.
Always work safely and use a proper
jack with at least 2 jack stands.
Locate the bottom part of the shifter
(there will be a dust boot over it which
you can slide off) under the car where it
connects to the shift rod. Make sure the
shifter is engaged in 5th gear and use a
12 mm socket with a ratchet to remove
the bolt holding the shifter to the shift
rod. Put the bolt aside for re-installation
later.
19. Back inside the car remove the
reverse lockout plate from the shifter.
Put it aside for re-installation later.
20. Remove the shifter from the car.
21. Remove the spring from the shifter
mount and put it aside for re-installation
later.
22. The plastic cup needs to be
removed from the stock shifter. It is a
tight fit so a good way to remove it is to
place the cup and shifter on a bench
vise as pictured and hammer the shifter
out of the cup. Make sure the bottom of
the shifter is on top so you can hammer
it out by hitting the bottom part of the
shifter. Once it’s removed, keep the
plastic cup to install it on the TWM short
shifter. The shifter itself will not be reused.
23. Grease the main pivot ball on the
TWM short shifter.
24. Clean the inside of the plastic cup
and then apply some grease to the
inside.
25. Install the TWM short shifter in the
plastic cup. You can use the bench vise
as pictured to pop the shifter back
inside the cup. Make sure the reverse
lockout pin of the short shifter is aligned
with the part of the plastic cup where
there is no black rubber on top of it.
26. Back inside the car, install the round
metal spacer inside the shifter hole.
27. Put the spring removed in step #19
over the metal spacer.
28. Place the top metal spacer as
pictured on the left.
29. Install the TWM short shifter in
place.
30. Place the reverse lockout plate over
the shifter and align the holes with the
holes of the spacer and the holes of the
shifter mechanism.
31. Install the two (2) bolts with washers
provided in the package in place but do
not completely tighten them down yet.
32. Back under the car, install both
stainless steel bushings inside the
bottom portion of the TWM short shifter.
The smaller diameter face goes inside
the shifter.
Insert the bottom of the shifter with the
bushings installed inside the shift rod.
Now before doing to the next step,
make sure the reverse lock pin is in the
proper position from inside the car. The
pin has to point toward the passenger
side.
33. Re-install the bolt to hold the shift
rod to the shifter. Tighten to
approximately 8 lbs-ft.
Place the dust boot back over the
shifter/shift rod.
34. Back inside the car you can adjust
the reverse lockout plate. The shifter
should be in 5th gear so the reverse
lockout pin on the shifter needs to touch
the plate. Once it’s properly adjusted,
tighten all bolts. Make sure all gears
engage properly, esspecially 5th and 6th
gears to be sure the plate is correctly
installed. If the shifter is too stiff to
move, the bolt under the car may be
over tightened. Once everything is
correct, proceed to the next step.
35. Re-install everything in reverse from
step #16 to #1 for the 350Z/G35.
In the 370Z/G37, re-install everything in
reverse from step #16 to #4 incl. In
order to have the best fit for your stock
shift boot, you may want to use the
supplied boot collar. Adjust it about 3/8”
above the dampening system.
36. In the 370Z, you will need to zip tie
the upper rubber boot, pictured to the left,
around the white plastic bushing to
ensure a perfect fit.
This will sit on the boot collar. Test the
shift boot and shift knob with this setup
and make proper adjustments for the best
fit.
The boot collar will need to be adjusted
differently if you are using an aftermarket
shift knob.
37. You are done! Thank you for choosing
Legal Disclaimer
TWM Performance is not responsible for the misuse, incorrect installation, or failure of any product we sell.
Under no circumstances, including but not limited to negligence, will TWM Performance be liable for special or
consequential damages that result from the use or inability to use our products. TWM Performance does not assume
responsibility for any damage to the user, passenger or vehicle resulting from the operation of a TWM Performance
product.
TO PROTECT USERS FROM INJURY OR DEATH. THE USER ASSUMES ALL RISKS. Autocrossing, track events, and
high speed driving are all dangerous activities - always drive responsibly and safely.
Warranty
Installation of some TWM Performance products may or may not void factory warranties. Always keep OEM equipment
that has been replaced in case work is required at the dealer or the vehicle is sold.
This warranty covers the original purchasing consumer. This warranty is limited to repair or replacement by TWM
Performance of any TWM Performance product that fails because of a defect in materials or workmanship.
Warranty does not cover the following:
-Damage incurred to related vehicle components
-Regular day to day wear on vehicle
-Shipping costs for replacements
-Installation costs and vehicle down time
-Products that have been modified, incorrectly installed or misused.
-Mounting hardware and bearings